Figure 4.

Incidence of post-COVID-19 symptoms and changes in required care before and after COVID-19.

A. Incidence of post-COVID-19 symptoms of depression and disuse syndrome in patients with COVID-19 aged 0-19, 20-59, and 60-85 years in three observation periods. The p-value between the two groups was calculated using the chi-squared or Fisher’s exact tests and then compared with a corrected significance level using Bonferroni’s method (α′). Asterisks indicate that the p-value was less than α′ using different original significance level (α); **** α = 0.0001, *** α = 0.001, and ** α = 0.01. ns represents no significance. B. Changes in nursing care requirements according to age before and after COVID-19 for support levels 1-2, care levels 1-3, and care levels 4-5. C. Changes in nursing care requirements of ages 60-85 years before and after COVID-19 for care levels 1-3, and care levels 4-5. The p-value between the two groups was calculated using the chi-squared test and then compared with a corrected significance level using Bonferroni’s method (α′). A dagger indicates that the p-value was less than α′ using a different original significance level (α); † α = 0.1. represents tendency.